NOVA | PBS

The Limits of Facial Recognition

Thu, 02 May 2013 09:00:00 EST

Our incomplete understanding of how humans perceive faces may be hindering advances in automated face recognition.

Manhunt—Boston Bombers

Thu, 02 May 2013 09:00:00 EST

Which technologies worked—and which didn't—in the race to track down the men behind the marathon attack?

Deadly Crocodiles Down Under

Thu, 02 May 2013 09:00:00 EST

Australians try to live safely with giant saltwater reptiles that will eat just about anything—including people.

Dual Epidemics Threaten Koalas

Thu, 18 Apr 2013 09:00:00 EST

Devastated by disease, an iconic Australian species gets help from science and the public.

When to Worry About the Flu

Thu, 18 Apr 2013 09:00:00 EST

New strains are worrisome, but science offers a number of reasons why you shouldn't panic.

The Looming Satellite Gap

Thu, 11 Apr 2013 09:00:00 EST

Many Earth-observing satellites are nearing the end of their lives.

The Edge of the Solar System

Thu, 11 Apr 2013 09:00:00 EST

What is it like at the edge of interstellar space? And how will we know when the Voyager spacecraft reach it?

Plants with Family Values

Thu, 11 Apr 2013 09:00:00 EST

Scientists find that plants can act altruistically toward their siblings.

Bed Bug Sex

Thu, 11 Apr 2013 09:00:00 EST

Gross Science: How bed bugs reproduce is the stuff of nightmares.

Australia's "Magnetic" Termites

Thu, 11 Apr 2013 09:00:00 EST

Meet some tropical insects whose homes mysteriously point toward the poles.

Experts Debate Dinosaur Stampede

Thu, 04 Apr 2013 09:00:00 EST

Millions of years ago in what is today Australia's Outback, a herd of dinosaurs left behind footprints in what has been interpreted as a stampede to escape a predator. A young researcher now suggests a very different interpretation.

Preventing an Asteroid Strike

Thu, 28 Mar 2013 09:00:00 EST

Psychology, not technology, is delaying asteroid detection and deflection programs.

Mexico Considers Gum Tax

Thu, 28 Mar 2013 09:00:00 EST

Mexico may make gum chewers pay to clean up litter.

Battle for the Genome

Thu, 21 Mar 2013 09:00:00 EST

Are gene patents standing in the way of personalized medicine?

Clothing from Slime?

Thu, 21 Mar 2013 09:00:00 EST

Super-strong hagfish slime might become the fabric of the future.

The Higgs Boson...or a Higgs Boson?

Thu, 14 Mar 2013 09:00:00 EST

Is it the only one? And how will it change our understanding of the universe?

Australia: Awakening

Thu, 14 Mar 2013 09:00:00 EST

Australia's ancient landscape holds clues to Earth's early history and the beginning of life.

Australia: Life Explodes

Thu, 14 Mar 2013 09:00:00 EST

Fossils reveal how life's explosion in the ocean was recreated on dry land.

Australia: Monsters

Thu, 14 Mar 2013 09:00:00 EST

Some 250 million years ago, some of the largest, most dangerous reptiles ruled this land.

Australia: Strange Creatures

Thu, 14 Mar 2013 09:00:00 EST

After a massive extinction, diverse marsupials came to dominate this isolated continent.

Meteor Strike

Thu, 14 Mar 2013 09:00:00 EST

A meteor burst into a fireball over Siberia. Can we spot the next deadly asteroid in time?

Inside North Korea's Environmental Collapse

Thu, 07 Mar 2013 09:00:00 EST

Scientists who recently visited the hermit nation report the situation is dire.

NOVA Next

Fri, 01 Mar 2013 09:00:00 EST

NOVA's website for original, authoritative science news and opinion.

The Tongue-Eating Parasite

Fri, 01 Mar 2013 09:00:00 EST

Gross science: This parasite crawls into a fish's mouth and replaces its tongue. Enough said.

Good Parents, Troubled Teens

Thu, 21 Feb 2013 09:00:00 EST

Miles O'Brien, producer of "Mind of a Rampage Killer," describes what it's like to meet the parents of troubled teens.

Mind of a Rampage Killer

Thu, 17 Jan 2013 09:00:00 EST

Can science help us understand why some people commit horrific acts of mass murder?

NewsHour Newtown Coverage

Thu, 21 Feb 2013 09:00:00 EST

PBS takes a look at gun violence in America in the wake of the Newtown tragedy.

Australia: First 4 Billion Years

Thu, 14 Feb 2013 09:00:00 EST

One of the strangest landscapes on Earth reveals our planet's complex history.

Digging Up Panama's Past

Thu, 14 Feb 2013 09:00:00 EST

An expansion of the Panama Canal is revealing the history of life on Earth.

New Species in the Old World

Thu, 14 Feb 2013 09:00:00 EST

The hunt is on to find undiscovered animal species in Europe.

Earth From Space

Wed, 13 Feb 2013 09:00:00 EST

Detailed satellite images reveal the web of connections that sustain life on Earth.

Collecting Rain in Mexico City

Thu, 07 Feb 2013 09:00:00 EST

A non-profit in Mexico City suggests using rainwater harvesting to remedy the city's water shortage.

Mexico's Bat Man

Thu, 07 Feb 2013 09:00:00 EST

Biologist Rodrigo Medellin champions bat conservation and public education.

The Volga Trade Route

Thu, 07 Feb 2013 09:00:00 EST

The Vikings may have trekked all the way to Iran in search of crucible steel.

When Hurricane Sandy Went Rogue

Thu, 07 Feb 2013 09:00:00 EST

What started out as a tropical storm evolved into one of New York City's worst nightmares.

Einstein's Brain

Thu, 07 Feb 2013 09:00:00 EST

Scientists search for the biological roots of genius in Einstein's brain.

Why Do We Cook?

Wed, 30 Jan 2013 18:00:00 EST

Cooking may have played a major role in human evolution.

Science of Thanksgiving Turkey

Wed, 30 Jan 2013 18:00:00 EST

Find out how to make your Thanksgiving dinner even more scrumptious.

Profile: Sian Beilock

Wed, 30 Jan 2013 18:00:00 EST

Sian Beilock says that even the smartest brains fail to perform well under pressure.

Profile: Nathan Myhrvold

Wed, 30 Jan 2013 18:00:00 EST

Why Nathan Myhrvold is sometimes known as "Willy Wonka."

New Ways to Use Drones

Wed, 30 Jan 2013 18:00:00 EST

Although pioneered by the military, unmanned aircraft could soon become a common part of civilian life.

Neuroscience of Taste

Wed, 30 Jan 2013 18:00:00 EST

Discover how "flavor magicians" perform tricks on our senses.

Mystery of the Savant Brain

Wed, 30 Jan 2013 18:00:00 EST

In the far off year of 5527, which day of the week will May 1st fall on? George Widener knows.

Memory vs. Intelligence

Wed, 30 Jan 2013 18:00:00 EST

David Pogue competes against the nation's top memory athletes and discovers their secrets.

Egyptian Armor

Wed, 30 Jan 2013 18:00:00 EST

How did the ancient Egyptians protect themselves during battle?

Chariot Weapons

Wed, 30 Jan 2013 18:00:00 EST

A military historian demonstrates how the ancient Egyptians fought from their chariots.

Swarming Drones

Thu, 17 Jan 2013 09:00:00 EST

A University of Pennsylvania lab is developing tiny drones that sense their environment.

Animal Morality

Thu, 24 Jan 2013 09:00:00 EST

That expression on your dog's face might say more about you than it does about her.

GPS Pigeons

Thu, 24 Jan 2013 09:00:00 EST

Watch David Pogue struggle in a race against one of nature's most adept navigators.

Hive Mind

Thu, 24 Jan 2013 09:00:00 EST

For bees, teamwork is critical in creating a functioning "brain."

Parachute Problems

Thu, 24 Jan 2013 09:00:00 EST

NASA untangles why a parachute failed during testing prior to the Curiosity landing.

Profile: Laurie Santos

Thu, 24 Jan 2013 09:00:00 EST

Laurie Santos looks for the origins of human social idiosyncrasies in rhesus macaques.

How Drones Change Everything

Thu, 24 Jan 2013 09:00:00 EST

Missy Cummings and other drone experts discuss the transformational nature of unmanned vehicles.

A Challenge for Humanoid Robots

Thu, 17 Jan 2013 09:00:00 EST

Walking might be easy for us, but it's a nightmare for a robot.

A Look at Augmented Reality

Thu, 17 Jan 2013 09:00:00 EST

Our perceived world has gone beyond smart phones, goggles, and video games.

Evolution of Laughter

Thu, 17 Jan 2013 09:00:00 EST

We're not the only species that laughs.

How Dumb Are Drones?

Thu, 17 Jan 2013 09:00:00 EST

The real questions are, how autonomous are they now and how autonomous can they get?

Mind-Reading Machines

Thu, 17 Jan 2013 09:00:00 EST

Meet scientists at the frontier of the mind-machine interface.

Neanderthals 'R' Us

Thu, 17 Jan 2013 09:00:00 EST

Do you have a Neanderthal in your family tree?

Profile: Adrien Treuille

Thu, 17 Jan 2013 09:00:00 EST

The combined efforts of half a million video gamers could some day help cure a disease.

Profile: Zeresenay Alemseged

Thu, 17 Jan 2013 09:00:00 EST

Zeresenay Alemseged leads a new generation of African-born anthropologists.

Scanning the Dead

Thu, 17 Jan 2013 09:00:00 EST

Virtual autopsies give coroners incredibly detailed and telling images of victims' bodies.

Stone Age Language Mystery

Thu, 17 Jan 2013 09:00:00 EST

Could two of our species' achievements—tool use and language—be intimately connected?

Swarming Drones

Thu, 17 Jan 2013 09:00:00 EST

A University of Pennsylvania lab is developing tiny drones that sense their environment.

A Neanderthal Burial

Thu, 10 Jan 2013 09:00:00 EST

Scientists think a posed body alongside a panther paw are evidence of Neanderthal rites.

Costa Rica's Hunting Ban

Thu, 10 Jan 2013 09:00:00 EST

The Central American nation is set to become the first in the region to outlaw sport hunting.

Death Detectives

Thu, 10 Jan 2013 09:00:00 EST

Murder investigations often hinge on one critical detail: When did the victim die?

Neanderthal Superglue

Thu, 10 Jan 2013 09:00:00 EST

This "superglue" suggests Neanderthals weren't as primitive as once thought.

Profile: Tadayoshi Kohno

Thu, 10 Jan 2013 09:00:00 EST

Computer scientist Yoshi Kohno tries to stay one step ahead of hackers.

Secrets of Lie Detection

Thu, 10 Jan 2013 09:00:00 EST

Scientists are learning how to spot lies at their very source: inside the brain.

Neanderthals Defy Stereotypes

Thu, 10 Jan 2013 09:00:00 EST

A type of manufactured glue found on stone tools suggests Neanderthals were more advanced than previously thought.

A Volcanic Labyrinth

Wed, 02 Jan 2013 09:00:00 EST

See the only place on the Earth where scientists can study a volcano from the inside.

Meet the Volcanoes

Wed, 02 Jan 2013 09:00:00 EST

Volcanoes can come in many shapes and sizes.

Can Science Predict Mass Murder?

Fri, 21 Dec 2012 09:00:00 EST

Can science predict violent behavior and help prevent tragedies like Newtown, Connecticut?

How Do We Perceive Risk?

Fri, 21 Dec 2012 09:00:00 EST

Why mass murders and other tragedies that kill scores of people make us most fearful.

Criminal Minds: Born or Made?

Fri, 21 Dec 2012 09:00:00 EST

Scientists are using neuroimaging and genetic testing to uncover biological aggression.

Building Pharaoh's Chariot

Fri, 21 Dec 2012 09:00:00 EST

A team uncovers the advanced engineering behind an ancient Egyptian war machine.

Rise of the Drones

Thu, 13 Dec 2012 09:00:00 EST

Meet a new breed of flying robots, from tiny swarming vehicles to giant unmanned planes.

Who Killed Lindbergh's Baby?

Thu, 13 Dec 2012 09:00:00 EST

Expert investigators reexamine one of the greatest murder mysteries of all time.

Decoding Neanderthals

Thu, 06 Dec 2012 09:00:00 EST

Shared DNA reveals a deep connection with our long-vanished human cousins.

Doomsday Volcanoes

Thu, 06 Dec 2012 09:00:00 EST

Could the explosion of Iceland's ticking time bombs cause cold and famine worldwide?

Sandy's Warning

Wed, 21 Nov 2012 09:00:00 EST

Do we have what it takes to stop catastrophic warming?

The Energy Lab

Wed, 21 Nov 2012 09:00:00 EST

Explore ways to make the most of renewable energy sources and use real data to design your own virtual power systems.

Climate Change and Sandy

Thu, 15 Nov 2012 09:00:00 EST

A climate scientist suggests that rapid warming in the Arctic helped create October's "superstorm."

Forecast for the Floodplains

Thu, 15 Nov 2012 09:00:00 EST

Urban development coupled with intense hurricanes is causing storm damage to ripple beyond the coastline.

Hurricanes and Climate Change

Thu, 15 Nov 2012 09:00:00 EST

Why we know climate change is making hurricanes more dangerous, even if it may not be making them more intense.

New Photos of Einstein's Brain

Thu, 15 Nov 2012 09:00:00 EST

Recently released brain images could provide fresh clues as to what made Einstein so smart.

Space Kids

Thu, 15 Nov 2012 09:00:00 EST

Engineers who landed the Curiosity rover on Mars recall their early love of space.

Storm Surges and New York City

Thu, 15 Nov 2012 09:00:00 EST

How multiple lines of defense, from massive barriers to oyster reefs, can protect our cities from storm surges.

Engineering Extra Senses

Thu, 08 Nov 2012 09:00:00 EST

Cyberneticist Kevin Warwick is developing new ways for us to experience the world with more than just our five senses.

Inside the Megastorm

Thu, 08 Nov 2012 09:00:00 EST

Watch as hurricane Sandy unfolds, and explore what made it so much more devastating than other hurricanes.

Past Predictions: Expert QA

Thu, 08 Nov 2012 09:00:00 EST

Matt Novak, author of the Paleofuture blog, answers questions about how good (or bad) we are at predicting the future.

Slime Mold Smarts

Thu, 08 Nov 2012 09:00:00 EST

Slime molds may be brainless, but they aren't stupid.

The Clever Dog Lab

Thu, 08 Nov 2012 09:00:00 EST

An animal research laboratory in Vienna enlists local pets to study the roots of canine personality.

The Waggle Dance

Thu, 08 Nov 2012 09:00:00 EST

Watch David Pogue shake his money maker like a honeybee.

What Are Dogs Thinking?

Thu, 01 Nov 2012 09:00:00 EST

Alexandra Horowitz, an expert in canine cognition, will answer questions submitted by November 9.

What Does the Earth Sound Like?

Thu, 01 Nov 2012 09:00:00 EST

Twin satellites probing the Earth's radiation belts return the clearest recordings yet of a "chorus" of radio waves.

Food Science: Expert Q&A

Thu, 25 Oct 2012 09:00:00 EST

Michael Brenner, who teaches a Harvard class on the science of cooking, will answer questions submitted by November 2.

Cook's Illustrated: Sugar

Thu, 25 Oct 2012 09:00:00 EST

Because of its chemistry, sugar does a whole lot more than add sweetness.

Cook's Illustrated: Sauces

Thu, 25 Oct 2012 09:00:00 EST

The secret to the perfect vinaigrette is in the emulsifier.

Cook's Illustrated: Potatoes

Thu, 25 Oct 2012 09:00:00 EST

All potatoes are not created equal.

Cook's Illustrated: Burgers

Thu, 25 Oct 2012 09:00:00 EST

Learn how to make tender burgers at home, the scientific way.

Packaging You Can Eat

Thu, 25 Oct 2012 09:00:00 EST

A team of chefs, chemists, and designers introduce foods and beverages wrapped in edible shells.

Stable Isotopes in Forensics

Thu, 18 Oct 2012 09:00:00 EST

Investigators use elemental variations to unearth new leads.

Neuroprediction and Crime

Thu, 18 Oct 2012 09:00:00 EST

How much can brain imaging and genetic studies help in the fight against criminal behavior?

Boosting Kids' Brain Power

Thu, 18 Oct 2012 09:00:00 EST

Could a brain-stimulating technique that uses an electrical current enhance math abilities in children?

Human Intelligence: Expert Q&A

Thu, 18 Oct 2012 09:00:00 EST

Fred Lepore, a neurologist who has studied Einstein's brain, will answer questions submitted by October 26.

Three Advances in Forensics

Thu, 18 Oct 2012 09:00:00 EST

Sniffing, sifting, and sensing new ways to solve—and prevent—crime.

Ancient Computer

Thu, 18 Oct 2012 09:00:00 EST

A Greek shipwreck holds the remains of an intricate bronze machine that turns out to be the world's first computer.

What Will the Future Be Like?

Thu, 18 Oct 2012 09:00:00 EST

Meet the people building tomorrow's robots, 3-D virtual environments, mind-reading machines, and more.

NOVA scienceNOW Facebook Quiz

Thu, 11 Oct 2012 09:00:00 EST

Test your smarts with our weekly NOVA scienceNOW Facebook quiz.

Science and Crime: Expert Q&A

Thu, 11 Oct 2012 09:00:00 EST

Nita Farahany, an expert on using science in the criminal justice system, will answer questions submitted by October 19.

Secrets of the Viking Sword

Thu, 11 Oct 2012 09:00:00 EST

A modern-day swordsmith reverse engineers the ultimate weapon of the middle ages — a sword both prized and feared.

Strands of Evidence

Thu, 11 Oct 2012 09:00:00 EST

Your hair may reveal more about you than you realize—including where you live and where you have been.

Top 25 Worst Passwords

Thu, 11 Oct 2012 09:00:00 EST

Discover the 25 worst passwords, and learn how to keep your password safe from computer hackers.

What Makes Us Human?

Thu, 11 Oct 2012 09:00:00 EST

Find out if you're part Neanderthal, about the evolution of laughter, what language may owe to tool-making, and more.

Mapping the Brain

Thu, 04 Oct 2012 20:00:00 EST

Use some of the same imaging techniques neuroscientists use-from MRIs to PET scans-to see inside the human brain.

Is Multitasking Bad For Us?

Thu, 04 Oct 2012 20:00:00 EST

Cognitive researchers have sobering though preliminary news—if we can focus on it.

Dogs' Dazzling Sense of Smell

Thu, 04 Oct 2012 20:00:00 EST

What lies behind their exceptional gift of sniff?

Social Skills: Kids vs. Apes

Thu, 04 Oct 2012 20:00:00 EST

To see what sets humans apart, anthropologist Victoria Wobber challenges young apes and children to do the same tasks.

Neanderthals: Expert Q&A

Thu, 04 Oct 2012 20:00:00 EST

The leader of the team that proved we share DNA with Neanderthals will answer questions submitted by October 12 pm.

Mystery of Easter Island

Thu, 04 Oct 2012 20:00:00 EST

A team of scientists and volunteers test a theory on how the ancient stone statues were moved, using a 15-ton replica.

Is a Calorie a Calorie?

Thu, 20 Sep 2012 20:00:00 EST

Do calories from a chocolate bar have the same effect on your waistline as an equal number of calories from an orange?

Hippocampus Humor

Thu, 20 Sep 2012 20:00:00 EST

What did Professor Hippocampus say at his retirement party?

Are Neanderthals Human?

Thu, 20 Sep 2012 20:00:00 EST

Neanderthals—and whether they, too, are human—present a conundrum well known in biology: What exactly is a species?

Our Improbable Ability to Walk

Thu, 20 Sep 2012 20:00:00 EST

How do we two-legged, top-heavy pillars of flesh and bone possibly stay upright while in motion?

David Pogue's Brain Scan

Thu, 20 Sep 2012 20:00:00 EST

An anthropologist discovers something completely unexpected in David Pogue's brain scan.

The World Ant Tour

Thu, 20 Sep 2012 20:00:00 EST

American scientists visit European museums to photograph ants in exquisite detail.

How Smart Can We Get?

Thu, 20 Sep 2012 20:00:00 EST

See inside Einstein's brain, learn how to boost your memory, meet people who became savants after an injury, and more.

Waiting for Curiosity

Mon, 06 Aug 2012 20:00:00 EST

Producer Gail Willumsen reports from the Jet Propulsion Laboratory on the Curiosity rover's nail-biting Mars landing.

Welcome to Mars, Curiosity!

Mon, 06 Aug 2012 20:00:00 EST

Senior Executive Producer, Paula Apsell, reports on the excitement and promise of the rover's successful landing.

How to Land a Mars Rover

Mon, 06 Aug 2012 20:00:00 EST

Rob Manning of the Curiosity team describes the feats of engineering required to land the Mars rover safely.

A Life-Changing Landing on Mars

Fri, 03 Aug 2012 11:00:00 EST

Planetary scientist Ashwin Vasavada reflects on life as a member of the Mars Science Laboratory team.

NOVA Returns to Mars

Fri, 03 Aug 2012 11:00:00 EST

Hear from NOVA's Senior Executive Producer on the allure of the Red Planet, and watch a live webcast from the launch.

An Interview With Sally Ride

Wed, 25 Jul 2012 16:00:00 EST

Watch an uncut interview with the late astronaut, conducted in 1984, and hear her views on being the first American woman in space.

Cleaner Cookstoves in Uganda

Wed, 25 Jul 2012 16:00:00 EST

Changing the way women cook may help protect the environment and reduce the incidence of sexual assault in Uganda.

Scientists Protest Lakes Closure

Thu, 19 Jul 2012 16:00:00 EST

A Canadian government decision to cease operating the Experimental Lakes Area provokes angry protests by scientists.

Ultimate Mars Challenge

Thu, 19 Jul 2012 16:00:00 EST

In its search for life beyond Earth, NASA deploys a new "sky crane" to land the Curiosity rover on Mars.

Forensics on Trial

Thu, 12 Jul 2012 16:00:00 EST

Virtual autopsies, 3-D fingerprints, and digital crime scenes are making crime-solving into a more precise science.

Higgs Boson Revealed

Thu, 05 Jul 2012 16:00:00 EST

Go behind the scenes at CERN for exclusive interviews with lead scientists on the historic July 4 announcement.

Cornering the Higgs

Thu, 05 Jul 2012 16:00:00 EST

A professor from one of the CERN teams explains what this experimental result means for the future of physics.

Live Webcasts: The Latest Higgs Results

Tue, 26 Jun 2012 16:00:00 EST

Tune in to see scientists announce their latest findings in the ongoing search for the elusive Higgs boson.

The Higgs Boson Explained

Fri, 29 Jun 2012 16:00:00 EST

What is the Higgs boson? Physicist Frank Wilczek explains how the Higgs may help complete the Standard Model of physics.

A Higgs by Any Other Name

Thu, 29 Mar 2012 16:00:00 EST

How did the Higgs boson get its name? Discovery why many scientists, including Higgs himself, want to rename it.

The Higgs Particle Matters

Fri, 29 Jun 2012 16:00:00 EST

Learn how Peter Higgs' ideas about matter transformed our understanding of space.

Five Reasons to Eat Insects

Wed, 13 Jun 2012 16:00:00 EST

Save room for bugs! They're the future of green cuisine.

The Sun Lab

Thu, 26 Apr 2012 16:00:00 EST

Research solar storms using images from NASA telescopes; share your work; and find out about careers in science.

Gamers and Genomics

Thu, 26 Apr 2012 16:00:00 EST

An online game called Phylo taps the brainpower of thousands of players to solve complex problems in genetics.

Making Chemicals Naturally

Thu, 12 Apr 2012 17:00:00 EST

A pioneer in the field of green chemistry explains how copying Nature's methods to make chemicals is safer and cheaper.

NOVA Elements iPad App

Thu, 12 Apr 2012 17:00:00 EST

Explore an interactive periodic table, combine elements to make real stuff, and watch the two-hour NOVA program.

Magnetic Fish Hooks Save Sharks

Thu, 05 Apr 2012 17:00:00 EST

A chance discovery that sharks avoid rare earth magnets may help protect them from over-fishing.

Elemental Bloopers

Thu, 29 Mar 2012 17:00:00 EST

Watch David Pogue's hilarious out-takes from NOVA's "Hunting the Elements."

Elements in the Ocean

Thu, 29 Mar 2012 17:00:00 EST

Marine geochemist Catherine Jeandel has bottled the world's oceans to decipher their past—and future.

A Gene for Fish Odor

Thu, 22 Mar 2012 17:00:00 EST

The discovery of a gene that explains an embarrassing body odor offers a little comfort to those who suffer.

Name That Element!

Thu, 22 Mar 2012 17:00:00 EST

Think you know the periodic table? See how quickly you can name the mystery elements we describe.

Chemotherapy and Breast Cancer

Thu, 22 Mar 2012 17:00:00 EST

For some breast cancer patients, chemotherapy isn't always necessary.

Genetic Testing Dilemmas

Thu, 08 Mar 2012 17:00:00 EST

Would you take a test that could tell you more about your future health?

Extract Your Own DNA

Wed, 29 Feb 2012 17:00:00 EST

Behold your very own DNA in this do-it-yourself science experiment.

Why Ships Sink

Thu, 23 Feb 2012 17:00:00 EST

Are you safe aboard a modern cruise ship?

B-29: Frozen in Time

Thu, 09 Feb 2012 17:00:00 EST

An abandoned B-29 bomber in Greenland is brought back to life after more than 50 years.

Drinking Mastodon Juice

Thu, 02 Feb 2012 17:00:00 EST

Forget Happy Hour. These scientists drink water trapped in Ice Age bones.

Deadliest Tornadoes

Wed, 01 Feb 2012 17:00:00 EST

Why was the 2011 tornado season in the U.S. so extreme, and, with advanced warning systems, why did so many die?

Secrets of the Sun

Tue, 24 Jan 2012 17:00:00 EST

With new tools, scientists are striving to better grasp our star and its potentially widely destructive solar storms.

Cracking Your Genetic Code

Tue, 24 Jan 2012 17:00:00 EST

We are on the brink of a new era of personalized, gene-based medicine. Are we ready for it?

Mystery of a Masterpiece

Thu, 22 Dec 2011 17:00:00 EST

Art experts investigate whether a portrait sold for about $20,000 in 2008 is actually a lost Leonardo worth millions.

Separating Twins

Thu, 22 Dec 2011 17:00:00 EST

Follow the amazing story of Trishna and Krishna, girls born joined at the head, as surgeons prepare to separate them.

Light My Fire

Thu, 15 Dec 2011 17:00:00 EST

What do you get when you introduce a chunk of sodium to a Bunsen burner? Sizzling romance.

Ice Age Death Trap

Thu, 15 Dec 2011 17:00:00 EST

Scientists race to uncover a site in the Rockies packed with fossil mammoths and other extinct ice age beasts.

3D Spies of WWII

Thu, 15 Dec 2011 17:00:00 EST

With 3D graphics, NOVA reveals how the Allies used special aerial photos to deal a dire blow to the Nazi rocket program.

Bombing Hitler's Dams

Thu, 15 Dec 2011 17:00:00 EST

Experts recreate the bold feat of "dambuster" pilots who used bouncing bombs to destroy two key German dams in WWII.

Deadliest Volcanoes

Thu, 15 Dec 2011 17:00:00 EST

From Japan's Mt. Fuji to Yellowstone's buried supervolcano, how can we best prepare for the most lethal eruptions?

Fabric: Quantum Leap

Thu, 17 Nov 2011 17:00:00 EST

The Fabric of the Cosmos, Hour 3: Take a wild ride into the quantum realm, where even the impossible seems possible.

The Amazing Atomic Clock

Thu, 17 Nov 2011 17:00:00 EST

What are atomic clocks? And why do we need them?

Fabric: The Illusion of Time

Thu, 10 Nov 2011 17:00:00 EST

The Fabric of the Cosmos, Hour 2: It defines our lives, but what is time really? Have a look into its true nature.

Steven Weinberg on Space

Thu, 10 Nov 2011 17:00:00 EST

The concept of "space" is a tough one to explain, even for a Nobel prize-winning physicist.

Sean Carroll on Time

Thu, 10 Nov 2011 17:00:00 EST

Physicist Sean Carroll says there's no such thing as past or future in the elementary laws of physics.

Peter Galison on Time

Thu, 10 Nov 2011 17:00:00 EST

Physicist Peter Galison says that humans sense time as moving constantly forward, but it doesn't really work that way.

Max Tegmark on Time

Thu, 10 Nov 2011 17:00:00 EST

Physicist Max Tegmark says that time is still one of the biggest mysteries in physics.

Leonard Susskind on Space

Thu, 10 Nov 2011 17:00:00 EST

Physicist Leonard Susskind says that Einstein's equations show that space exists, but they don't explain what it is.

Jim Gates on Space

Thu, 10 Nov 2011 17:00:00 EST

Physicist Jim Gates says that even if you took all the matter out of the universe, space still wouldn't be empty.

Janna Levin on Space and Time

Thu, 10 Nov 2011 17:00:00 EST

Physicist Janna Levin says that Einstein and Newton had very different ideas about what space and time really are.

Alan Guth on Space

Thu, 10 Nov 2011 17:00:00 EST

Physicist Alan Guth says that the concept of "space" is more complicated than you might think.

Describing Nature With Math

Thu, 10 Nov 2011 17:00:00 EST

How do scientists use mathematics to define reality? And why?

Fabric of the Cosmos: What is Space?

Thu, 03 Nov 2011 17:00:00 EST

The Fabric of the Cosmos, Hour 1: Surprising clues indicate that space is very much something and not nothing.

Quantum Confidential

Thu, 03 Nov 2011 17:00:00 EST

Learn how to send top-secret messages using quantum mechanics.

Thu, 06 Jan 2011 17:00:00 EST

The Making of the Quantum Club

Thu, 27 Oct 2011 17:00:00 EST

Take a behind-the-scenes look at this animated sequence from "The Fabric of the Cosmos."

The Fabric of the Cosmos

Thu, 27 Oct 2011 17:00:00 EST

Acclaimed physicist Brian Greene reveals a mind-boggling reality beneath the surface of our world.

Looking for ET

Fri, 21 Oct 2011 17:00:00 EST

It's not easy to look for alien intelligence, but scientists like Seth Shostak believe that's no reason not to try.

Beliefs About Alien Intelligence

Fri, 21 Oct 2011 17:00:00 EST

Is the search for extraterrestrial intelligence pseudoscience, protoscience, or science?

How Rare Is the Earth?

Fri, 21 Oct 2011 17:00:00 EST

Simple life may exist throughout the universe, says paleontologist Peter Ward, but complex life is likely another story.

A Cosmic Crossword

Thu, 20 Oct 2011 17:00:00 EST

Try your hand at NOVA's first crossword puzzle. It's fast, physics-based, and fun.

Will We Ever Find ET?

Wed, 19 Oct 2011 17:00:00 EST

What are the odds that smart aliens exist in the universe?

Life in the Solar System

Wed, 19 Oct 2011 17:00:00 EST

The head of the Cassini Mission says Saturn's moon Enceladus is the go-to place in the solar system for finding life.

Finding Earth Like Planets

Thu, 13 Oct 2011 17:00:00 EST

Learn how to find signs of extraterrestrial life in our galaxy without leaving home.

An Interview With Steve Jobs

Thu, 13 Oct 2011 17:00:00 EST

Watch a rare interview with the late Apple visionary, conducted in 1990, and see how remarkably prescient he was.

Build a Bridge

Thu, 06 Oct 2011 17:00:00 EST

You're a civil engineer. Four bridges need to go up. Only you can decide which kind to use where.

Heisenberg Humor

Thu, 06 Oct 2011 17:00:00 EST

Quantum mechanics is nothing to laugh at. Well, sometimes it is.

On Being a Physicist

Thu, 06 Oct 2011 17:00:00 EST

Columbia's Brian Greene explains why history's greatest scientific thinkers, from Newton to Feynman, became his heroes.

A Trip Through Spacetime

Thu, 29 Sep 2011 17:00:00 EST

Join Albert Einstein on a high-speed cab ride to see why space and time are truly in the eye of the beholder.

Spooky Action at a Distance

Thu, 22 Sep 2011 17:00:00 EST

That's what Einstein called it, dismissively, but ultra-strange quantum entanglement does exist, Brian Greene writes.

Reflections on the 9/11 Memorial

Thu, 22 Sep 2011 17:00:00 EST

Visitors to the newly opened 9/11 memorial share their impressions.

Special Relativity in a Nutshell

Thu, 15 Sep 2011 17:00:00 EST

Brian Greene explains Einstein's notion of the mutability of space and time in a way you can readily understand it.

The Spacetime Lemonade Stand

Thu, 08 Sep 2011 17:00:00 EST

Thirsty for understanding? See how well people on the street can explain spacetime.

Rebuilding 7 World Trade Center

Thu, 01 Sep 2011 17:00:00 EST

Developer Larry Silverstein explains what's different about the new 7 World Trade Center.

Walls of Glass

Thu, 25 Aug 2011 17:00:00 EST

One World Trade Center's glass façade may look fragile, but it is extraordinarily tough.

The Memorial Plaques

Thu, 25 Aug 2011 17:00:00 EST

Visit the factory where the 9/11 Memorial plaques are made.

The 9/11 Memorial Mock-Up

Thu, 25 Aug 2011 17:00:00 EST

Architect and designer Michael Arad takes us on a tour of his 9/11 Memorial mock-up.

Solving an Engineering Problem

Thu, 25 Aug 2011 17:00:00 EST

Bracing One World Trade Center's steel frame led to some unexpected perks at the worksite.

Hunting the Elements

Thu, 25 Aug 2011 17:00:00 EST

From the producers of "Making Stuff"

Riddles of the Multiverse

Thu, 11 Aug 2011 16:00:00 EST

USC theoretical physicist Clifford Johnson contemplates the controversial notion of multiple universes.

Surviving the Tsunami

Thu, 04 Aug 2011 17:00:00 EST

Gripping personal stories from Japan offer lessons on how to act in the face of a life-threatening disaster.

"Fringe" Science

Thu, 28 Jul 2011 17:00:00 EST

How does the sci-fi series "Fringe" draw inspiration from real quantum physics and cutting-edge research?

A Quantum Leap in Computing

Thu, 21 Jul 2011 17:00:00 EST

MIT's Seth Lloyd, a pioneer of quantum computing, explains its applications and revolutionary potential.

Engineering Ground Zero

Thu, 21 Jul 2011 17:00:00 EST

Designing and building One World Trade Center and the National September 11 Memorial & Museum

Iceman Murder Mystery

Thu, 21 Jul 2011 17:00:00 EST

A new forensic investigation of a 5,000-year-old mummy reconstructs his death and reveals an ancient way of life.

Putting Relativity to the Test

Thu, 14 Jul 2011 17:00:00 EST

Nearly a century after Einstein published his general theory, experiments continue to confirm its every prediction.

Finding Life Beyond Earth

Thu, 30 Jun 2011 17:00:00 EST

Scientists are on the verge of answering one of the greatest questions in history: Are we alone?

Explore Ancient Egypt

Thu, 23 Jun 2011 17:00:00 EST

With 360-degree and other imagery, walk around the Sphinx, enter the Great Pyramid, visit tombs and temples, and more.

It's Elemental

Thu, 12 May 2011 17:00:00 EST

In this interactive periodic table, explore the elements and their properties and abundances.

The Fabric of the Cosmos

Tue, 10 May 2011 17:00:00 EST

Acclaimed physicist Brian Greene reveals a mind-boggling reality beneath the surface of our everyday world.

The Many Gods of Israel

Thu, 05 May 2011 17:00:00 EST

Archeologist Bill Dever says that polytheism may have been the norm in ancient Israel.

Write Your Name in Runes

Thu, 28 Apr 2011 17:00:00 EST

See your name spelled in runes and learn the meaning of each of the letters in the Viking alphabet.

Profile: Katharine Hayhoe

Wed, 27 Apr 2011 9:00:00 EST

Katharine Hayhoe is an evangelical Christian as well as a climate scientist concerned about the impacts of global warming.

Tour the Solar System

Thu, 21 Apr 2011 17:00:00 EST

Explore the planets, visit the moon, and gaze at the stars in this 3-D interactive model of the solar system.

A Clean Energy Future?

Wed, 20 Apr 2011 12:00:00 EST

Developing clean energy technologies makes sense not only environmentally but economically, Nobelist Steven Chu argues.

A Strict Carbon Diet

Thu, 14 Apr 2011 17:00:00 EST

Inventor and engineer Saul Griffith has put himself and his family on a strict regime to reduce their carbon footprint.

Green Energy in China

Thu, 14 Apr 2011 17:00:00 EST

China is ramping up production of solar technology and smart electric grids, but coal power remains king.

Map of the Human Heart

Thu, 14 Apr 2011 17:00:00 EST

See exactly how your heart pumps blood throughout your body and learn astounding facts about the human heart.

Improving Maternal Health

Thu, 14 Apr 2011 17:00:00 EST

In the year 2000, the U.N. set out to make maternal health care a universal right. Where does that goal stand today?

Profile: Alan Sage

Wed, 13 Apr 2011 9:00:00 EST

Alan Sage writes poetry, raps fiercely, and explores the "root memory" of plants. Meet him on "Secret Life."

Japan's Killer Quake: Watch the Program

Thu, 31 Mar 2011 9:00:00 EST

Watch the program online on NOVA now

Profile: Emily Whiting

Wed, 30 Mar 2011 9:00:00 EST

Emily Whiting, an architectural engineer and avid rock climber, knows how to keep things in balance.

Training for a Nuclear Crisis

Tue, 29 Mar 2011 17:00:00 EST

Are workers at U.S. nuclear power plants prepared to deal with earthquakes, tsunamis, and other disasters?

Inside a Nuclear Control Room

Tue, 29 Mar 2011 17:00:00 EST

Explore a panoramic image of the control room at the Pilgrim Nuclear Power Station's training simulator.

Japan's Killer Quake

Tue, 22 Mar 2011 12:00:00 EST

An eyewitness account and investigation of the epic earthquake, tsunami, and nuclear crisis

Profile: Dave Sulzer

Wed, 16 Mar 2011 9:00:00 EST

Dave Sulzer studies diseases of the brain and how brain cells communicate. He has also conducted an elephant orchestra.

Profile: Shaundra Daily

Wed, 02 Mar 2011 9:00:00 EST

This software engineer and dancer found her groove teaching children about their emotional lives.

Power Surge

Thu, 24 Feb 2011 17:00:00 EST

Are we finally on the brink of a clean energy revolution?

Venom: Nature's Killer: Watch the Program

Thu, 24 Feb 2011 9:00:00 EST

Watch the program online on NOVA now

What's the Next Big Thing?: Watch the Program

Thu, 24 Feb 2011 9:00:00 EST

Watch the program online on NOVA now

Venom's Healing Bite

Thu, 17 Feb 2011 17:00:00 EST

Toxic compounds in animal venom could yield new drugs for heart disease, cancer, and chronic pain.

Cars That Power the Grid

Thu, 17 Feb 2011 17:00:00 EST

Electric cars that feed energy back to the power grid may play a critical role in a future "smart grid."

Crash of Flight 447: Watch the Program

Thu, 17 Feb 2011 9:00:00 EST

Watch the program online on NOVA now

Where Did We Come From?: Watch the Program

Thu, 17 Feb 2011 9:00:00 EST

Watch the program online on NOVA now

The Risks of Automated Flight

Wed, 16 Feb 2011 17:00:00 EST

Aviation safety expert Bill Voss thinks airlines should change the way they train pilots.

When Lightning Strikes Aircraft

Wed, 16 Feb 2011 17:00:00 EST

An aviation safety expert and a veteran airline pilot weigh in on the effects of lightning strikes during flight.

The Secret Life of Andre Fenton

Wed, 16 Feb 2011 9:00:00 EST

Andre Fenton studies the biological basis of human memory. And he never forgets to find some quiet time to meditate.

Smartest Machine on Earth: Watch the Program

Thu, 10 Feb 2011 9:00:00 EST

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Making Stuff: Smarter: Watch the Program

Thu, 10 Feb 2011 9:00:00 EST

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How Smart Are Animals?: Watch the Program

Thu, 10 Feb 2011 9:00:00 EST

Watch the program online on NOVA now

Getting Computers to See

Wed, 09 Feb 2011 17:00:00 EST

Vision as we know it remains elusive for machines. But as this video short shows, they are starting to get the picture.

Dolphin Reading Test

Wed, 09 Feb 2011 17:00:00 EST

Watch as a dolphin's reading ability is put to the test.

Chemical Bonds Quiz

Thu, 03 Feb 2011 17:00:00 EST

Explore what holds atoms together to form the myriad chemical substances found in our world.

Solar Sails

Thu, 03 Feb 2011 17:00:00 EST

NASA engineer Dean Alhorn says that some future spacecraft may be propelled by the sun's rays.

Making Stuff: Cleaner: Watch the Program

Thu, 03 Feb 2011 9:00:00 EST

Watch the program online on NOVA now

How Does the Brain Work?: Watch the Program

Thu, 03 Feb 2011 9:00:00 EST

Watch the program online on NOVA now

Profile: Steffie Tomson

Wed, 02 Feb 2011 9:00:00 EST

Neuroscientist Steffie Tomson doesn't just study the bizarre phenomena of synesthesia, she's a synesthete herself.

Change Blindness

Thu, 27 Jan 2011 17:00:00 EST

How can we miss big visual changes that happen right before our eyes?

Soccer-Playing Robots

Thu, 27 Jan 2011 17:00:00 EST

These completely autonomous ball-kickers are irresistible to watch—and may represent a major step forward in AI.

Artificial Intelligence Pioneer

Thu, 27 Jan 2011 17:00:00 EST

MIT's Marvin Minsky, one of the fathers of AI, expounds on the current state of the field and hopes for its future.

Can We Live Forever?: Watch the Program

Thu, 27 Jan 2011 9:00:00 EST

Watch the program online on NOVA now

Making Stuff: Smaller: Watch the Program

Thu, 27 Jan 2011 9:00:00 EST

Watch the program online on NOVA now

Will Watson Win on Jeopardy!?

Thu, 20 Jan 2011 17:00:00 EST

Three artificial-intelligence experts, including the leader of the Watson team, discuss the supercomputer's prospects.

Suspended Animation

Thu, 20 Jan 2011 17:00:00 EST

Cell biologist Mark Roth says that suspended animation isn't just science fiction.

Smartest Machine: Expert Q&A

Thu, 20 Jan 2011 17:00:00 EST

The head of the AI team that programmed the computer "Watson" to compete on Jeopardy! answers questions.

What Is Intelligence?

Thu, 20 Jan 2011 17:00:00 EST

Hear Steven Pinker, Rodney Brooks, and other experts offer their insights on what it means to be smart.

The Uses of TMS: Expert Q&A

Thu, 20 Jan 2011 17:00:00 EST

Have questions about transcranial magnetic stimulation (TMS) and how it treats depression? Ask an expert.

Can We Make It to Mars?: Watch the Program

Thu, 20 Jan 2011 9:00:00 EST

Watch the program online on NOVA now

Making Stuff: Stronger: Watch the Program

Thu, 20 Jan 2011 9:00:00 EST

Watch the program online on NOVA now

Profile: Judy Lee

Wed, 19 Jan 2011 9:00:00 EST

Judy Lee designs and engineers all kinds of consumer products. Outside of her day job, she hosts a TV show for kids.

The Dangers of Nanotech

Thu, 13 Jan 2011 17:00:00 EST

Nanomaterials are used in consumer goods from cell phones to sunscreen. But how safe are they?

Ethics of Erasing Memory

Thu, 13 Jan 2011 17:00:00 EST

Bioethicist Art Caplan says that memory-altering drugs raise major ethical questions.

What's This Stuff? Contest

Thu, 06 Jan 2011 17:00:00 EST

Think you know your stuff? Be the first to identify 10 mystery materials and win a MacBook Air and meet David Pogue.

Bugs That Live on You

Thu, 06 Jan 2011 17:00:00 EST

From bed bugs to eyelash mites, a jungle of insects and arachnids thrives on and around the human body.

Venom: Nature's Killer

Thu, 06 Jan 2011 17:00:00 EST

Hunting down the most venomous animals to reveal their medical mysteries

Smartest Machine on Earth

Thu, 06 Jan 2011 17:00:00 EST

Jeopardy! challenges even the best human minds. Can a computer win the game?

The Stuff of Smartphones

Thu, 06 Jan 2011 17:00:00 EST

See the materials and technologies that go into a smartphone as well as their environmental impact.

Profile: Michio Kaku

Wed, 05 Jan 2011 9:00:00 EST

Physicist Michio Kaku's dream is to find the "unified theory of everything." But he does take breaks to go figure skating.

What's the Next Big Thing?

Thu, 30 Dec 2010 17:00:00 EST

Greet the future: social robots, a "smart" electric grid, microbes that make diesel fuel, and more.

Where Did We Come From?

Thu, 30 Dec 2010 17:00:00 EST

Explore the origin of our solar system and the start of life itself, how head lice figure in human evolution, and more.

How Smart Are Animals?

Thu, 30 Dec 2010 17:00:00 EST

Dogs, dolphins, parrots, and even octopuses (mere mollusks!) may be smarter than you think.

How Does the Brain Work?

Thu, 30 Dec 2010 17:00:00 EST

Investigate the psychology of magic tricks, magnetic wands that treat depression, artificial intelligence, and more.

Can We Live Forever?

Thu, 30 Dec 2010 17:00:00 EST

Explore artificial organs, suspended animation, genes that impact aging, and lifelike avatars.

Can We Make It to Mars?

Thu, 30 Dec 2010 17:00:00 EST

See new space suits, foods, and rockets that may support future Mars-bound astronauts, and meet a Mars rover driver.

Putting Bacteria to Work

Thu, 30 Dec 2010 17:00:00 EST

Bacteria help us in all kinds of ways, from fermenting foods to aiding medicine, cleaning oil spills to mining minerals.

Secrets Beneath the Ice: Watch the Program

Wed, 29 Dec 2010 9:00:00 EST

Watch the program online on NOVA now

Toward a Smart Electric Grid

Thu, 23 Dec 2010 17:00:00 EST

Should the U.S. be upgrading now to a "smart" electric grid? An energy expert insists there's no time to lose.

The Psychology of Spaceflight

Thu, 16 Dec 2010 17:00:00 EST

NASA psychologist Al Holland says that a three-year return trip to Mars would be a mental challenge for any astronaut.

Making Stuff: Cleaner

Thu, 16 Dec 2010 17:00:00 EST

Can innovative materials help solve the energy crisis and lead to a sustainable future? David Pogue investigates.

Making Stuff: Smarter

Thu, 16 Dec 2010 17:00:00 EST

Explore a new generation of ingenious materials, from clothes that monitor your mood to real-life invisibility cloaks.

Making Stuff: Smaller

Thu, 16 Dec 2010 17:00:00 EST

Future technologies will depend on tiny stuff—from silicon chips to micro-robots that probe the human body.

Making Stuff: Stronger

Thu, 16 Dec 2010 17:00:00 EST

David Pogue tests his mettle against the world's strongest stuff, from steel and Kevlar to bioengineered silk.

Deadliest Earthquakes

Thu, 16 Dec 2010 17:00:00 EST

Big quakes are inevitable, but can we lessen their devastation?

Taking the Heat

Thu, 09 Dec 2010 17:00:00 EST

David Pogue visits DuPont to get a closer look at fireproof clothing.

Cosmic Ray Danger

Thu, 02 Dec 2010 17:00:00 EST

Berries and other foods containing antioxidants may alleviate cellular damage caused by cosmic radiation.

Magic and Autism

Thu, 02 Dec 2010 17:00:00 EST

A magician's sleight of hand may not fool people with autism, who may benefit from learning social cues found in magic.

The Star in You

Thu, 02 Dec 2010 17:00:00 EST

Just what do astronomers mean when they say we're all made of star stuff?

Materials That Changed History

Thu, 02 Dec 2010 17:00:00 EST

From ceramics to steel, paper to plastics, certain basic substances have long propped up civilization.

Profile: Allan Adams

Wed, 01 Dec 2010 9:00:00 EST

A physicist with a love for waves, Allan Adams doesn't need an engine to fly—he's a glider pilot.

The World's Strongest Stuff

Wed, 24 Nov 2010 9:00:00 EST

From diamonds to spider silk, see some of the hardest, strongest, and toughest materials on Earth.

Quest for Solomon's Mines: Watch the Program

Wed, 24 Nov 2010 9:00:00 EST

Watch the program online on NOVA now

A Mission To Mars

Thu, 18 Nov 2010 17:00:00 EST

Former astronaut Buzz Aldrin says that a human presence on Mars is inevitable.

The Art of Nanotech

Thu, 18 Nov 2010 17:00:00 EST

See a selection of award-winning images of nanoscale materials.

Secrets of Stonehenge: Watch the Program

Wed, 17 Nov 2010 9:00:00 EST

Watch the program online on NOVA now

Historic Spacesuits

Thu, 11 Nov 2010 15:00:00 EST

See classic images from Projects Mercury, Gemini, and Apollo as well as space-suit prototypes that never made the cut.

A One-Way Trip to Mars?

Thu, 04 Nov 2010 15:00:00 EST

Initial shock aside, some space scientists argue this is the only way to go.

Trapped in an Elevator: Watch the Program

Wed, 03 Nov 2010 9:00:00 EST

Watch the program online on NOVA now

Nature's Super-Materials

Thu, 28 Oct 2010 17:00:00 EST

See some of Nature's stickiest, toughest, and cleanest materials, and learn how they are inspiring new products.

The Meaning of Dog Barks

Thu, 28 Oct 2010 17:00:00 EST

Listen to a variety of dog barks—from woofs to whines—and try to interpret their meaning.

Rescuing the Miners

Wed, 27 Oct 2010 9:00:00 EST

Hear from Greg Hall, the drilling expert whose team reached 33 Chilean miners trapped more than 2,000 feet underground.

Emergency Mine Rescue: Watch the Program

Wed, 27 Oct 2010 9:00:00 EST

Watch the program online on NOVA now

Sacred Architecture

Thu, 21 Oct 2010 16:30:00 EST

When designing Gothic cathedrals, some medieval builders drew on sacred measurements laid out in the pages of the Bible.

Europe's Mysterious Megaliths

Thu, 21 Oct 2010 16:30:00 EST

View a slide show of stone circles and other prehistoric ceremonial sites stretching from Scotland to Malta.

Building the Great Cathedrals: Watch the Program

Wed, 20 Oct 2010 9:00:00 EST

Watch the program online on NOVA now

Profile: Rachel Collins

Wed, 20 Oct 2010 9:00:00 EST

A microbiologist by day and a professional wrestler on weekends, Rachel Collins is also known as "MsChif."

Mt. St. Helens: Back From the Dead: Watch the Program

Wed, 05 May 2010 12:00:00 EST

Watch the program online on PBS.org now

Mind Over Money: Watch the Program

Wed, 28 Apr 2010 10:00:00 EST

Watch the program online on PBS.org now

Mind Over Money: The Deciding Factor

Mon, 26 Apr 2010 15:00:00 EST

A new study at Harvard is exploring how emotions affect our decisions, whether we like it or not.

Hunting the Edge of Space: Part 2: Watch the Program

Wed, 14 Apr 2010 10:00:00 EST

Watch the program online on PBS.org now

Hunting the Edge of Space: Part 1: Watch the Program

Wed, 07 Apr 2010 11:00:00 EST

Watch the program online on PBS.org now

Hunting the Edge of Space: The Founders of Modern Astronomy

Tue, 30 Mar 2010 17:00:00 EST

William Herschel often gets the credit, but his sister Caroline was also a pioneer astronomer.

Hunting the Edge of Space: Giant Telescopes of Tomorrow

Mon, 22 Mar 2010 17:00:00 EST

Immense optical and radio telescopes now in the works promise to make astonishing discoveries about the cosmos.

The Pluto Files: Watch the Program

Wed, 03 Mar 2010 09:00:00 EST

Watch the program online on PBS.org now

The Pluto Files: In Defense of Pluto

Fri, 19 Feb 2010 17:00:00 EST

Alan Stern, head of NASA's new mission to Pluto, stands up for the little guy.

The Pluto Files: What's Your Favorite Planet?

Fri, 19 Feb 2010 17:00:00 EST

Listen in as 11 planetary scientists make pitches for the "best" planet, then vote yourself.

The Pluto Files: My Dad Discovered Pluto

Fri, 12 Feb 2010 17:00:00 EST

How did Clyde Tombaugh go from baling hay to finding Pluto? In this slide show, his son Alden reflects.

The Pluto Files: Can You Remember the Planets?

Fri, 12 Feb 2010 17:00:00 EST

Share your ideas for new ways to remember planet names.

The Pluto Files: Hate Mail from Third Graders

Fri, 12 Feb 2010 17:00:00 EST

See what some outraged, but loving, kids had to say to Neil about "demoting" Pluto.

Extreme Cave Diving: Watch the Program

Wed, 10 Feb 2010 09:00:00 EST

Watch the program online on PBS.org now

Ghosts of Machu Picchu: Watch the Program

Wed, 03 Feb 2010 09:00:00 EST

Watch the program online on PBS.org now

Extreme Cave Diving: Links and Books

Mon, 01 Feb 2010 17:00:00 EST

Find resources on cave diving, the biology and geology of blue holes, and more.

Extreme Cave Diving: TV Program Description

Mon, 01 Feb 2010 17:00:00 EST

In a daring work of filmmaking, NOVA follows a scientific expedition into watery caves that hold clues to the future of our climate.

Extreme Cave Diving: Creatures of the Underwater Caves

Mon, 01 Feb 2010 17:00:00 EST

The "blue holes" of the Bahamas harbor animals seen nowhere else on the planet.

Extreme Cave Diving: Risking it all for Science

Mon, 01 Feb 2010 17:00:00 EST

What drives scientists to delve into flooded caves where they face rock falls, nitrogen narcosis, even drowning?

Riddles of the Sphinx: Watch the Program

Wed, 20 Jan 2010 09:00:00 EST

Watch the program online on PBS.org now

Ghosts of Machu Picchu: Outfitting for Battle

Tue, 19 Jan 2010 17:00:00 EST

Inca and conquistador soldiers had very different gear—and that made all the difference.

Ghosts of Machu Picchu: Inca Skull Surgery

Tue, 19 Jan 2010 17:00:00 EST

In this audio slide show, see evidence of a radical surgical procedure common among the Inca 500 years ago.

Ghosts of Machu Picchu: Rise of the Inca

Tue, 19 Jan 2010 17:00:00 EST

How did the Inca Empire become as vast as the Roman in just over a century?

Ghosts of Machu Picchu: A Marvel of Inca Engineering

Tue, 19 Jan 2010 17:00:00 EST

Perched high in the Andes, Machu Picchu required ingenious construction, as engineer Ken Wright explains.

The Pluto Files: TV Program Description

Tue, 12 Jan 2010 17:00:00 EST

Learn more about Neil's adventures as he toured the country and explored why scientists and schoolkids alike are still debating Pluto.

The Pluto Files: Notes From the Pluto Files

Tue, 12 Jan 2010 17:00:00 EST

Hear Neil describe what it was like to meet Clyde Tombaugh's family and other people passionate about Pluto.

Riddles of the Sphinx: The Dream Stela of Thutmosis IV

Tue, 12 Jan 2010 17:00:00 EST

Egyptologist Kasia Szpakowska decodes a mysterious stone monument erected between the Sphinx's front paws.

Riddles of the Sphinx: Excavating the Lost City

Tue, 12 Jan 2010 17:00:00 EST

Egyptologist Mark Lehner describes the lives of the pyramid-builders, as revealed in his ongoing excavation at Giza.

Riddles of the Sphinx: Saving the Sphinx

Tue, 12 Jan 2010 17:00:00 EST

Zahi Hawass, head of Egypt's Supreme Council of Antiquities, has taken extraordinary steps to preserve this timeless sculpture.

Riddles of the Sphinx: Explore the Giza Plateau

Tue, 12 Jan 2010 17:00:00 EST

Savor 360° and other striking panoramas of the Sphinx and the Great Pyramids.

Building Pharaoh's Ship: Explore a Pharaoh's Boat

Thu, 31 Dec 2009 17:00:00 EST

Examine a masterpiece of ancient shipbuilding found a half century ago buried beside the Great Pyramid.

Building Pharaoh's Ship: The Expedition to Punt

Thu, 31 Dec 2009 17:00:00 EST

Follow an Egyptian pharaoh's voyage to the fabled Land of Punt, as chronicled in an ancient wall carving.

Building Pharaoh's Ship: Where is Punt?

Thu, 31 Dec 2009 17:00:00 EST

Despite heaps of evidence and decades of debate, scholars are not certain where or even what Punt was. Why?

Building Pharaoh's Ship: Anatomy of the Punt Ship

Thu, 31 Dec 2009 17:00:00 EST

Click on parts of the reconstructed vessel and see how they compare to archeological finds.

Killer Subs in Pearl Harbor: Yamato's Final Voyage

Tue, 22 Dec 2009 17:00:00 EST

Relive the supership's last moments as American warplanes relentlessly strafed, bombed, and torpedoed it.

Killer Subs in Pearl Harbor: Anatomy of Yamato

Tue, 22 Dec 2009 17:00:00 EST

Explore another marvel of Japanese WWII technology, the largest battleship ever built.

Killer Subs in Pearl Harbor: Share Your Story

Tue, 22 Dec 2009 17:00:00 EST

Were you or someone you know a witness to the Pearl Harbor attack? We'd like to hear your story.

Killer Subs in Pearl Harbor: The Threat of Midget Subs Today

Tue, 22 Dec 2009 17:00:00 EST

Iran and North Korea have them, as do drug smugglers. How grave is the danger?

Killer Subs in Pearl Harbor: Japan's Midget Sub

Tue, 22 Dec 2009 17:00:00 EST

A 3-D model offers a detailed look at the tiny sub that carried torpedoes into Pearl Harbor.

Killer Subs in Pearl Harbor: Pearl Harbor Sub Discovered

Tue, 22 Dec 2009 17:00:00 EST

In this podcast, hear how a newly identified wreck found outside the harbor may rewrite the history of the Japanese attack.

What Are Dreams?: Links & Books

Wed, 28 Oct 2009 17:00:00 EST

Find more information—including some practical tips—on sleep, sleep disorders, and dreaming.

What Are Dreams?: TV Program Description

Wed, 28 Oct 2009 17:00:00 EST

NOVA looks at the latest in the scientific quest to understand dreams.

What Are Dreams?: The Sleep-Memory Connection

Wed, 28 Oct 2009 17:00:00 EST

Explore the stages of a good night's sleep and the research linking sleep to memory.

What Are Dreams?: Ask the Expert

Wed, 28 Oct 2009 17:00:00 EST

Harvard neuroscientist Robert Stickgold answers e-mailed questions about sleep and dreaming.

Lizard Kings: Watch the Program

Wed, 21 Oct 2009 09:00:00 EST

Watch the program online on PBS.org now

Hubble's Amazing Rescue: Watch the Program

Wed, 14 Oct 2009 09:00:00 EST

Watch the program online on PBS.org now

Hubble's Amazing Rescue: TV Program Description

Tue, 13 Oct 2009 17:00:00 EST

In this film, follow the 12-day Space Telescope mission and its five nailbiting spacewalks.

Hubble's Amazing Rescue: Ask the Experts

Tue, 13 Oct 2009 17:00:00 EST

On the NOVA scienceNOW website, astronauts John Grunsfeld and Mike Massimino answer questions.

Hubble's Amazing Rescue: Saving Hubble Update

Tue, 13 Oct 2009 17:00:00 EST

Find links to our NOVA scienceNOW segments on the Hubble repair, a feature on Hubble's famous image of the Eagle Nebula, and more.

Hubble's Amazing Rescue: Follow the Hubble Repair

Tue, 13 Oct 2009 17:00:00 EST

NOVA producer Rush DeNooyer offers a day-by-day view of the 2009 mission from the inside.

Darwin's Darkest Hour: Watch the Program

Wed, 07 Oct 2009 09:00:00 EST

Watch the program online on PBS.org now

Lizard Kings: Links & Books

Tue, 06 Oct 2009 17:00:00 EST

Find links to websites and articles, as well as suggested books, about monitor lizards and those who study them.

Lizard Kings: Wild Lizard Chase

Tue, 06 Oct 2009 17:00:00 EST

In this slide show, producer Gisela Kaufmann illustrates the challenges of filming monitors, the planet's wiliest lizards.

Darwin's Darkest Hour: Darwin's Predictions

Thu, 24 Sep 2009 17:00:00 EST

Over 150 years later, science continues to confirm most of Darwin's conjectures.

Darwin's Darkest Hour: Explore the Galapagos

Thu, 24 Sep 2009 17:00:00 EST

With this multimedia map, see the islands as they are today and learn how they inspired Darwin

Darwin's Darkest Hour: Great Minds Think Alike

Thu, 24 Sep 2009 17:00:00 EST

The story of how Alfred Russel Wallace independently arrived at the same earth-shaking conclusions as Darwin

Darwin's Darkest Hour: Being Charles Darwin

Thu, 24 Sep 2009 17:00:00 EST

Stepping into Darwin's shoes changed actor Henry Ian Cusick's views both about the man and evolution.

Darwin's Darkest Hour: Capturing Darwin's Dilemma

Thu, 24 Sep 2009 17:00:00 EST

Scriptwriter John Goldsmith on the historical research behind "Darwin's Darkest Hour"

NOVA scienceNOW: Profile: Luis von Ahn

Wed, 1 Jul 2009 9:00:00 EST

A computer scientist finds novel ways to stop spammers and harness the brainpower of millions of people.

NOVA scienceNOW: Auto-Tune

Wed, 1 Jul 2009 9:00:00 EST

Can't carry a tune? Andy Hildebrand's pitch-correction software can help you sing like a star.

NOVA scienceNOW: Anthrax Investigation

Wed, 1 Jul 2009 9:00:00 EST

The new science of microbial forensics reveals the source of the anthrax used in the deadly attacks of 2001.

NOVA scienceNOW: Diamond Factory

Wed, 1 Jul 2009 9:00:00 EST

Visit a laboratory where entrepreneurs are growing perfectly pure diamonds.

Musical Minds: Watch the Program

Wed, 1 Jul 2009 09:00:00 EST

This one-hour program is divided into six chapters. Choose any chapter below and select QuickTime or Windows Media Player to begin viewing the video. If you experience difficulty viewing, it may be due to high demand. We regret this and suggest you try back at another time.

Musical Minds: Video Extra

Thu, 21 May 2009 15:00:00 EST

See an expanded version of the film's sequence on Oliver Sacks's brain as it reacts to different pieces of music.

Musical Minds: Ask the Expert

Thu, 21 May 2009 15:00:00 EST

Oliver Sacks answers questions about why music affects the brain, how it can treat some neurologic disorders, and more.

Doctors' Diaries: Watch the Program

Wed, 15 Apr 2009 09:00:00 EST

Both Hour 1 and Hour 2 of this two-part program are divided into chapters. Choose any chapter below and select QuickTime or Windows Media Player to begin viewing the video. If you experience difficulty viewing, it may be due to high demand. We regret this and suggest you try back at another time.

Doctors' Diaries: Watch the Program

Wed, 08 Apr 2009 09:00:00 EST

The first part of the two-hour special is divided into six chapters. Choose any chapter below and select QuickTime or Windows Media Player to begin viewing the video. If you experience difficulty viewing, it may be due to high demand. We regret this and suggest you try back at another time.

Last Extinction: Watch the Program

Wed, 01 Apr 2009 09:00:00 EST

The Spy Factory: Decoding Speech

Wed, 21 Jan 2009 14:00:00 EST

If you think computers can easily recognize and transcribe spoken language, think again.

The Spy Factory: Investigating 9/11

Wed, 21 Jan 2009 14:00:00 EST

Eleanor Hill, who led congressional hearings on the attacks, discusses pre-9/11 intelligence failures in this interview.

The Spy Factory: The New Thought Police

Wed, 21 Jan 2009 14:00:00 EST

George Orwell's secret police have nothing on two new NSA systems designed to read people's minds.

The Spy Factory: Ask the Expert

Wed, 21 Jan 2009 14:00:00 EST

Author James Bamford answers viewer questions about the NSA, 9/11, and more.

Wed, 07 Jan 2009 17:00:00 EST

Arnold Schwarzenegger remains fearless about his state's energy bet.

Fri, 19 Dec 2008 17:00:00 EST

Everybody knows that liquid water is necessary for life, at least as we know it. But just why exactly?

Ocean Animal Emergency: Watch the Program

Wed, 26 Nov 2008 09:00:00 EST

The Bible's Buried Secrets: Video Extras

Wed, 19 Nov 2008 13:00:00 EST

A sampling of additional sequences from the edit room.

The Bible's Buried Secrets: Watch the Program

Wed, 19 Nov 2008 09:00:00 EST

This two-hour program is divided into thirteen chapters. Choose any chapter below and select QuickTime or Windows Media Player to begin viewing the video. If you experience difficulty viewing, it may be due to high demand. We regret this and suggest you try back at another time.

The Bible's Buried Secrets: Radiocarbon Dating

Mon, 17 Nov 2008 13:00:00 EST

What is carbon-14 anyway, and how can it reveal the date of an ancient artifact?

Wed, 29 Oct 2008 13:00:00 EST

Arctic Dinosaurs: The Producer's Story

Wed, 08 Oct 2008 17:00:00 EST

On Alaska's North Slope, Chris Schmidt quickly realized that one wrong step could spell disaster.

NOVA scienceNOW: Phoenix Mars Lander

Mon, 28 Jul 2008 13:00:00 EST

NASA's latest robot has already found frozen water and is looking for more signs that the Red Planet could support life.

NOVA scienceNOW: Brain Trauma

Mon, 28 Jul 2008 13:00:00 EST

Even so-called "mild" head injuries turn out to be anything but.

NOVA scienceNOW: Mammoth Mystery

Mon, 28 Jul 2008 13:00:00 EST

A pair of mammoth skeletons is found locked together by their tusks. What happened?

NOVA scienceNOW: Profile: Judah Folkman

Mon, 28 Jul 2008 13:00:00 EST

Once scorned for his ideas about how cancer grows, the late Judah Folkman is now hailed as a visionary.

NOVA scienceNOW: Dispatch: Asking Big Questions

Mon, 28 Jul 2008 13:00:00 EST

In this excerpt from a 2002 commencement address at Oberlin College, the late cancer researcher Judah Folkman describes how he learned to think outside the box when he was in high school. Listen in.

NOVA scienceNOW: Leeches

Mon, 21 Jul 2008 13:00:00 EST

A century after falling out of favor among doctors, medicinal leeches are back in hospitals, sucking away on patients' wounds.

NOVA scienceNOW: The Search for ET

Mon, 21 Jul 2008 13:00:00 EST

Astronomers have their radio telescopes tuned to receive signals from alien worlds. But is anybody out there?

NOVA scienceNOW: Stem Cells Breakthrough

Mon, 21 Jul 2008 13:00:00 EST

Three separate teams overcome a biomedical hurdle -- creating stem cells without the use of human embryos.

NOVA scienceNOW: Profile: Edith Widder

Mon, 21 Jul 2008 13:00:00 EST

Meet a marine biologist and explorer who has engineered new ways to spy on deep-sea creatures.

NOVA scienceNOW: Bird Brains

Fri, 11 Jul 2008 12:00:00 EST

Clues to the origins of human language are turning up in the brains of birds.

NOVA scienceNOW: Space Storms

Fri, 11 Jul 2008 12:00:00 EST

Behind the dazzling display of the aurora borealis are space storms that could turn the lights off here on Earth.

NOVA scienceNOW: Profile: Yoky Matsuoka

Fri, 11 Jul 2008 12:00:00 EST

A former tennis prodigy aims to create advanced prosthetic limbs controlled by human thought.

NOVA scienceNOW: Smart Bridges

Fri, 11 Jul 2008 12:00:00 EST

Can we engineer bridges that tell us what's wrong with them before it's too late?

NOVA scienceNOW: Dispatch: Bridge Doctors

Thu, 10 Jul 2008 16:00:00 EST

In this audio feature, engineer Michael Todd explains how new sensing technologies may help detect structural problems within bridges before they become dangerous.

NOVA scienceNOW: Saving Hubble

Thu, 03 Jul 2008 12:00:00 EST

Two teams of spacewalkers take on the risky mission of reviving the ailing Space Telescope.

NOVA scienceNOW: First Primates

Thu, 03 Jul 2008 12:00:00 EST

Our most distant primate ancestors, which took the stage shortly after the dinosaurs left it, were tree-dwellers the size of mice.

NOVA scienceNOW: Profile: Alfredo Quinones-Hinojosa

Thu, 03 Jul 2008 12:00:00 EST

He jumped the fence from Mexico to work as a farmhand and ended up a leading brain surgeon.

NOVA scienceNOW: Killer Microbe

Thu, 03 Jul 2008 12:00:00 EST

A relatively benign bug becomes a highly lethal pathogen, known to U.S. soldiers as Iraqibacter.

NOVA scienceNOW: Dispatch: Personal Genome Project

Fri, 27 Jun 2008 19:00:00 EST

In this video dispatch, learn why George Church of Harvard Medical School hopes to recruit 100,000 people and sequence all of their DNA.

NOVA scienceNOW: Dispatch: Falling Through the Earth

Tue, 24 Jun 2008 11:00:00 EST

Join host Neil deGrasse Tyson for a fantastic voyage through Earth's molten core -- without getting burned.

NOVA scienceNOW: Personal DNA Testing

Mon, 23 Jun 2008 11:00:00 EST

Genetic testing to assess risk factors for a handful of serious illnesses is now commercially available. But is it a good idea?

NOVA scienceNOW: Art Authentication

Mon, 23 Jun 2008 11:00:00 EST

See how clever computer algorithms can distinguish a master fake from a masterpiece.

NOVA scienceNOW: Capturing Carbon

Mon, 23 Jun 2008 11:00:00 EST

An eighth-grader's science fair project prompts her scientist father to develop a new way to pull excess carbon dioxide out of the atmosphere.

NOVA scienceNOW: Profile: Pardis Sabeti

Mon, 23 Jun 2008 11:00:00 EST

By night she's a rocker. By day, she's a Harvard geneticist tracking the evolution of the human genome.

NOVA scienceNOW: Dispatch: Hands on Hubble

Fri, 06 Jun 2008 09:00:00 EST

John Grunsfeld, an astronomer and astronaut, says that fixing the Hubble Space Telescope will be a delicate operation. Here, he explains how astronauts will have to literally let their fingers do the walking when working on the satellite -- and why the gloves of their space suits will play a major role in the mission's success.

NOVA scienceNOW: Dark Matter

Wed, 04 Jun 2008 16:00:00 EST

Turns out most of the universe is held together by a mysterious, invisible substance.

NOVA scienceNOW: Of Mice and Memory

Wed, 04 Jun 2008 16:00:00 EST

Mice placed in enriched environments can recover lost memories, giving hope to those who study Alzheimer's.

NOVA scienceNOW: Profile: Hany Farid

Wed, 04 Jun 2008 16:00:00 EST

This self-proclaimed "accidental scientist" is a digital detective inventing new ways to tell if photos have been faked.

NOVA scienceNOW: Wisdom of the Crowds

Wed, 04 Jun 2008 16:00:00 EST

Ask enough people to estimate something, and their combined guesses will get you surprisingly close to the right answer.

NOVA scienceNOW: Dispatch: Asking Big Questions

Thu, 22 May 2008 11:00:00 EST

In this excerpt from a 2002 commencement address at Oberlin College, the late cancer researcher Judah Folkman describes how he learned to think outside the box when he was in high school.

Lord of the Ants: Watch the Program

Wed, 21 May 2008 08:00:00 EST

This one-hour program is divided into five chapters. Choose any chapter and select QuickTime or Windows Media Player to begin viewing the video.

A Walk to Beautiful: Watch the Program

Wed, 14 May 2008 09:00:00 EST

This one-hour program is divided into six chapters. Choose any chapter and select QuickTime or Windows Media Player to begin viewing the video.

Lord of the Ants: A Conversation With E.O. Wilson

Fri, 25 Apr 2008 14:00:00 EST

Do humans have "biophilia," a built-in love for living things?

Lord of the Ants: The Boy Naturalist

Fri, 25 Apr 2008 14:00:00 EST

In this excerpt from his autobiography, 15-year-old Ed "Snake" Wilson meets his match in a swamp.

Lord of the Ants: Man of Ideas

Fri, 25 Apr 2008 14:00:00 EST

Sample high points in Wilson's remarkable half-century career through an overview of 12 of his books.

Lord of the Ants: Amazing Ants Game

Fri, 25 Apr 2008 14:00:00 EST

Match eight ants -- the trap jaw and honey pot among them -- to their unique behaviors.

NOVA scienceNOW: Dispatch: Finding Lost Memories

Thu, 24 Apr 2008 15:00:00 EST

In diseases like Alzheimer's, are forgotten memories gone for good? MIT's Eric Lander and Li-Huei Tsai discuss new experiments that are exploring whether these "lost" memories can be regained.

Car of the Future: Watch the Program

Wed, 23 Apr 2008 09:00:00 EST

This one-hour program is divided into six chapters. Choose any chapter and select QuickTime or Windows Media Player to begin viewing the video.

Car of the Future: Open Content

Wed, 23 Apr 2008 09:00:00 EST

More than 200 clips of footage, including expert interviews and scenics, are available for you to make your own video.

NOVA scienceNOW: Dispatch: Finding a Fake Van Gogh

Thu, 10 Apr 2008 16:00:00 EST

Can a computer tell the difference between an original van Gogh painting and a fake? NOVA scienceNOW producer Dean Irwin describes how 21st-century technology can help museum curators catch even the most skilled forgers.

Cracking the Maya Code: Watch the Program

Wed, 09 Apr 2008 08:00:00 EST

This one-hour program is divided into five chapters. Choose any chapter and select QuickTime or Windows Media Player to begin viewing the video.

Car of the Future: Beyond Technology

Tue, 25 Mar 2008 16:30:00 EST

Energy expert David Greene explains why we need smart government policies to spur change in our transportation system.

Car of the Future: History's Innovative Autos

Tue, 25 Mar 2008 16:30:00 EST

For a glimpse of how future cars may be powered, start by looking at the past.

Car of the Future: Model of Efficiency

Tue, 25 Mar 2008 16:30:00 EST

In this audio slide show, Amory Lovins offers his vision of an ultra-efficient 'Hypercar.'

Cracking the Maya Code: Time Line of Decipherment

Fri, 21 Mar 2008 16:00:00 EST

Trace key discoveries in the effort to understand the Maya script.

Cracking the Maya Code: A Masterpiece Revealed

Fri, 21 Mar 2008 16:00:00 EST

Explore a 2,000-year-old mural, one of the most exciting recent discoveries of early Maya art.

Cracking the Maya Code: Decode Stela Three

Fri, 21 Mar 2008 16:00:00 EST

'Read' Maya hieroglyphs carved on an eighth-century stone monument, and hear them spoken aloud.

Cracking the Maya Code: Map of the Maya World

Fri, 21 Mar 2008 16:00:00 EST

From Chichen Itza in the north to Copan in the south, the Maya empire was vast and varied.

NOVA scienceNOW: Dispatch: Eavesdropping on E.T.

Wed, 05 Mar 2008 17:00:00 EST

Seth Shostak, senior astronomer at SETI, thinks it's just a matter of time before we find evidence of other intelligent life in the universe.

A Walk to Beautiful: The Producer's Story

Tue, 04 Mar 2008 16:00:00 EST

Mary Olive Smith describes the mix of emotions she felt in making this film.

A Walk to Beautiful: Second Chances

Tue, 04 Mar 2008 16:00:00 EST

Catherine Hamlin explains why she has dedicated her life to treating fistulas.

A Walk to Beautiful: Two Worlds

Tue, 04 Mar 2008 16:00:00 EST

In this quiz, see how women in rich and poor countries face very different realities when it comes to childbearing and maternal health.

A Walk to Beautiful: Anatomy of Childbirth

Tue, 04 Mar 2008 16:00:00 EST

Review the three stages of having a baby as well as some of the risks women face.

The Four-Winged Dinosaur: Watch the Program

Wed, 27 Feb 2008 08:00:00 EST

This one-hour program is divided into six chapters. Choose any chapter and select QuickTime or Windows Media Player to begin viewing the video.

NOVA scienceNOW: Dispatch: Global Meltdown

Thu, 21 Feb 2008 14:00:00 EST

Glaciologist Lonnie Thompson says that glaciers around the world are disappearing -- fast.

Ape Genius: Watch the Program

Wed, 20 Feb 2008 08:00:00 EST

This one-hour program is divided into six chapters. Choose any chapter and select QuickTime or Windows Media Player to begin viewing the video.

Astrospies: Watch the Program

Wed, 13 Feb 2008 08:00:00 EST

This one-hour program is divided into five chapters. Choose any chapter and select QuickTime or Windows Media Player to begin viewing the video.

NOVA scienceNOW: Dispatch: Doctor Q

Thu, 07 Feb 2008 12:00:00 EST

Neurosurgeon Alfredo Quinones-Hinojosa's career didn't start in a hospital -- it began in a farm field. Listen in. And watch for Dr. Q's profile on NOVA scienceNOW this summer.

The Four-Winged Dinosaur: The Producer's Story

Fri, 01 Feb 2008 16:00:00 EST

Mark Davis has been tracking the controversial case of the flying dinosaur for almost 20 years.

The Four-Winged Dinosaur: Built to Fly

Fri, 01 Feb 2008 16:00:00 EST

Compare the anatomy of the oldest known bird and its dinosaur cousins.